He is a calm and rigorous forensic doctor and a Taoist priest who hides in the city. Half of the scalpel is used to solve the mystery of the corpse language, and half of the talismans and Taoist methods are used to cut away the evil and treacherous things. Modern criminal investigation collides with Taoist secrets, and there are yin and yang taboos hidden behind bizarre murders. As a forensic doctor and a Taoist priest, he uncovers every truth in the abyss where sin and evil spirits intertwine.